Disposable dental valve device having a check valve

ABSTRACT

A disposable dental valve device is disclosed having a valve body having a tip receiving end, a hose receiving end, a lumen formed between the tip receiving end and the hose receiving end, a partial opening formed in the valve body, and a rotatable valve sealing body adapted to being inserted into the partial opening, the rotatable valve sealing body having a bore for alignment with the lumen formed between the tip receiving end and the hose receiving end, the bore having a tip receiving opening and a hose receiving opening, the rotatable valve sealing body having a check valve positioned on the tip receiving opening, and the rotatable valve sealing body having a top and a handle portion connected to the top.

RELATED APPLICATION

This application is a continuation-in-part application of U.S. patentapplication Ser. No. 14/925,749, filed on Oct. 28, 2015, now U.S. patentSer. No., the disclosure of which is incorporated herein by reference.

BACKGROUND

This disclosure relates to a valve for a dental instrument for removingsaliva and other fluids from a mouth of a patient and more particularlyto a valve for a dental instrument which incorporates a check valve forpreventing backflow of saliva, debris, and other fluids back into themouth of the patient.

During a dental procedure it is important to be able to remove saliva,blood, water, tooth fragments, metals, and other debris or fluids fromthe mouth of a patient. Removal of this matter allows a dentist to beable to perform a procedure in an unobstructed manner. Various systemsor devices have been developed to remove liquid and solid materials froma mouth during a dental procedure. One device that is capable ofremoving saliva is known as a saliva ejector or a low volume ejector. Asaliva ejector typically comprises a plastic flexible tube for placementin the mouth of a patient. The saliva ejector tube is connected to avalve which in turn is connected via suction tubing to a source ofvacuum. In this manner, saliva is passed through the ejector tube, thevalve, and the tubing to be disposed of in a sanitary manner. Once theprocedure is completed, the ejector should be discarded and the valveshould be sterilized by autoclaving to be used again. Although it issuggested to autoclave the valve after each use, it is known thatautoclaving is hardly ever done. Another device that is capable ofremoving solid materials is a high volume evacuator system. A highvolume evacuator system generally consists of a tube that may beinserted into a mouth of a patient with the tube connected to a valvewhich is connected via a tubing to a source of vacuum. Again, in thismanner, debris may be removed from the mouth of the patient. After thedental procedure, the tube is disposed of and the valve should besterilized for reuse. However, although it is suggested to sterilize thevalve after use, it is known that this suggested procedure is hardlyever followed.

As can be appreciated, the saliva ejector and the high volume evacuatorare used to remove liquids and debris from a mouth of a patient toprevent a patient from swallowing or aspirating liquids and debrisproduced during a dental procedure. Typically, when using theseevacuator devices there is no backflow back into the mouth of a patient.However, there are times when backflow or a reverse flow may take placeand previously removed liquids and debris may flow back into the mouthof the patient. It is also possible that if the systems are not properlymaintained that fluids and debris from a previous patient may flow backinto the mouth of a subsequent patient. These situations may bedangerous, are undesirable, and should be avoided.

In order to prevent backflow, there are various devices that areseparate from the saliva ejector. These devices are inserted between theflexible tube and the dental valve or between the dental valve andsuction tubing. These devices tend to be complex and expensive. Further,these devices have to be separately purchased, inventoried, and usedapart from the flexible tube and the dental valve.

Therefore, it would be desirable to have a valve for a dental instrumentthat incorporates a check valve for preventing a backflow condition. Itwould also be desirable to have a disposable dental valve having a checkvalve that is easy to install on or remove from suction tubing for asource of vacuum. Further, it would be advantageous to have a disposabledental valve having a check valve that is disposable.

BRIEF SUMMARY

In one form of the present disclosure, a disposable dental valve devicecomprises a valve body having a tip receiving end, a hose receiving end,a lumen formed between the tip receiving end and the hose receiving end,a partial opening formed in the valve body, and a rotatable valvesealing body adapted to being inserted into the partial opening, therotatable valve sealing body having a bore for alignment with the lumenformed between the tip receiving end and the hose receiving end, thebore having a tip receiving opening and a hose receiving opening, therotatable valve sealing body having a check valve positioned on the tipreceiving opening, and the rotatable valve sealing body having a top anda handle portion connected to the top.

In another form of the present disclosure, a disposable dental valvedevice comprises a valve body having a tip receiving end, a hosereceiving end, a lumen formed between the tip receiving end and the hosereceiving end, a partial opening formed in the valve body, and arotatable valve sealing body adapted to being inserted into the partialopening, the rotatable valve sealing body having a bottom having anopening, a bore for alignment with the lumen formed between the tipreceiving end and the hose receiving end, the bore having a tipreceiving opening and a hose receiving opening, the rotatable valvesealing body having a check valve positioned in the tip receivingopening and the opening in the bottom, and the rotatable valve sealingbody having a top and a handle portion connected to the top.

In yet another form of the present disclosure, a disposable dental valvedevice kit comprises a valve body having a tip receiving end, a hosereceiving end, a lumen formed between the tip receiving end and the hosereceiving end, a partial opening formed in the valve body, a rotatablevalve sealing body adapted to being inserted into the partial opening,the rotatable valve sealing body having a bore for alignment with thelumen formed between the tip receiving end and the hose receiving end,the bore having a tip receiving opening and a hose receiving opening,the rotatable valve sealing body having a check valve positioned on thetip receiving opening, and the rotatable valve sealing body having a topand a handle portion connected to the top, and a cap device forinsertion into a hose connected to a source of vacuum.

The present disclosure provides a disposable dental valve device havinga check valve for use with a dental instrument that is suitable for onetime use and may be discarded after a single use.

The present disclosure provides a disposable dental valve device havinga check valve that is easy to install on suction tubing connected to asource of vacuum and have a tip installed on another end of thedisposable dental valve device.

The present disclosure provides a disposable dental valve device havinga check valve that is small, lightweight, easy to handle, easy toinstall, and easy to operate.

The present disclosure also provides a disposable dental valve devicehaving a check valve which is of simple construction and design andwhich can be easily employed with highly reliable results.

The present disclosure is related to a disposable dental valve devicehaving a check valve that does not require sterilization and preventsagainst any backflow and cross-contamination.

The present disclosure provides a disposable dental valve device havinga check valve that may have an antimicrobial agent or chemicalincorporated into the device to prevent any bacterial growth on thedevice. The antimicrobial agent or chemical may also be a coatingapplied to the disposable dental valve device having a check valve.

The present disclosure is related to a disposable dental valve devicehaving a check valve that may be constructed of plastic that isrecyclable or biodegradable to reduce the cost of the device and toallow the device to be disposable and discarded after a single use.

The present disclosure provides a disposable dental valve device havinga check valve that further includes a cap device that may be used to capoff a suction tubing connected to a source of vacuum when the disposabledental valve device having a check valve is removed from the suctiontubing connected to the source of vacuum to reduce or eliminate anysound or noise associated with the source of vacuum.

The present disclosure is related to a disposable dental valve devicehaving a check valve that has a valve sealing body that is easy tomanipulate during a dental operation to open or close the valve and alsoincorporates a check valve to automatically prevent backflow of saliva,liquid, or other material.

The present disclosure is also related to a method for manufacturing adisposable dental valve device having a check valve by injectionmolding.

These and other advantages of the present disclosure will becomeapparent after considering the following detailed specification inconjunction with the accompanying drawings, wherein:

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a disposable dental valve device havinga check valve constructed according to the present disclosure;

FIG. 2 is a perspective view of a disposable dental valve device havinga check valve constructed according to the present disclosure with avalve sealing body removed;

FIG. 3 is a cross-sectional view of a valve sealing body constructedaccording to the present disclosure with a check valve in a closedposition;

FIG. 4 is a cross-sectional view of the valve sealing body shown in FIG.3 with a check valve an opened position;

FIG. 5 is a perspective view of the valve seal body constructedaccording to the present disclosure with the check valve shown in theclosed position;

FIG. 6 is a perspective view of the valve seal body constructedaccording to the present disclosure with the check valve removed fromthe valve seal body and shown in an exploded view;

FIG. 7 is a partial cross-sectional view of another embodiment of avalve sealing device having a check valve shown in a closed positionconstructed according to the present disclosure;

FIG. 8 is a partial cross-sectional view of another embodiment of avalve sealing device having a check valve shown in a partially openposition constructed according to the present disclosure; and

FIG. 9 is a perspective view of cap device constructed according to thepresent disclosure.

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT

Referring now to the drawings, wherein like numbers refer to like items,number 10 identifies a disposable dental valve device for use with adental system (not shown) constructed according to the presentdisclosure. With reference now to FIG. 1, the valve 10 comprises a valvebody 12 having a tip receiving end 14, a suction tubing or hosereceiving end 16, and a rotatable valve sealing body 18. The tipreceiving end 14 is adapted to receive an evacuator tip device (notshown) such as a high volume evacuator or a low volume evacuator (salivaejector). The hose receiving end 16 is adapted to receive a vacuum lineor a hose (not shown) which is connected to a suction system (also notshown) which is used to dispose of any saliva, liquid, or debris removedfrom a mouth of a patient. The hose receiving end 16 also has acircumferential channel 20 that is adapted to accept an O-ring (notshown). The O-ring is used to further secure a hose or a tailpiece tothe hose receiving end 16. It is also possible that the hose receivingend 16 may incorporate a structure to secure a hose to the end 16without the use of the channel 20 or the requirement for an O-ring. Forexample, the end 16 may be barbed so that the barbs may hold a hosethereon. The device 10 is constructed of material that allows the device10 to be disposable and suitable for one time use. The device 10 alsohas a handle 22 for manual operation of the rotatable valve sealing body18 of the device 10. Manual operation of the handle 22 will open thedevice 10, close the device 10, or partially open the device 10, as willbe discussed more fully herein. As can be appreciated, a suction systemprovides suction through an evacuator tip device, the device 10, and ahose so that any debris, liquid, or saliva that is introduced into anevacuator tip device is removed through an evacuator tip device, thevalve 10, and a hose when the rotatable valve sealing body 18 of thedevice 10 is in an open state or a partially open state. The valve body12 also has an opening 24 at the tip receiving end 14 and a passage orlumen 26 formed in the valve body 12. The lumen 26 continues through thevalve body 12 to the hose receiving end 16. Although not shown, it iscontemplated that the tip receiving end 14 may be constructed having aninterior annular ring for receiving an O-ring to retain a tip therein.It is also possible that the tip receiving end 14 may have otherstructure that will allow a frictional engagement of a tip and the tipreceiving end 14.

With reference now to FIG. 2, the device 10 is shown with the rotatablevalve sealing device 18 being removed. The valve body 12 has the lumen26 and an opening 28 at the hose receiving end 16. As has beendescribed, the lumen 26 continues through the valve body 12 to the tipreceiving end 14. The valve body 12 also has a partial opening 30 formedon a top side 32 of the valve body 12. The partial opening 30 does notgo all the way through the valve body 12. The partial opening 30 isblocked by a bottom 34 of the valve body 12. An opening 36 is also shownin the lumen 26 between the tip receiving end 14 and the opening 30. Anannular channel or ring 38 is formed in the opening 30 which is used toretain the rotatable valve sealing device 18 in place, as will beexplained in further detail herein. The valve body 12 also has exteriorribs 40 that add strength to the valve body 12 and also assist informing the valve body 12.

FIG. 3 shows a cross-sectional view of the rotatable valve sealing body18 with the body 18 having been removed from the valve body 12. Therotatable valve sealing body 18 has a top 42, a central body portion 44having a bore 46, and a bottom 48. The handle 22 is part of the top 42.The central body portion 44 also has an annular ridge portion 50 nearthe top 42. The ridge portion 50 is capable of fitting into the ring 38(FIG. 2) in a snap fit engagement to secure the rotatable valve sealingbody 18 within the valve body 12. The bore 46 is adapted to be alignedwith the lumen 26 of the valve body 12. The bore 46 of the rotatablevalve sealing body 18 also has a first opening 52 and a second opening54. The first opening 52 is used to be aligned with the opening 28 (FIG.2) in the valve body 12. The second opening 54 is used to be alignedwith the opening 36 (FIG. 2) of the valve body 12. The second opening 54has a check valve 56 positioned therein to selectively open or close thesecond opening 54. The check valve 56 is provided for allowing liquid,saliva, or debris to pass from the tip receiving end 14, the check valve56, the bore 46, the first opening 52, and out the hose receiving end 16when the check valve 56 is opened. However, the check valve 56 alsoprevents any liquid, saliva, or debris from passing or traveling fromthe hose receiving end 16, the first opening 52, the bore 46, andthrough the check valve 56 when the check valve 56 is closed. The checkvalve 56 will close when a reduced pressure occurs from an interactionof a mouth of a patient on an evacuator tip device. For example, apatient may be requested to close the mouth of the patient around theevacuator tip device. When this occurs, a reduced pressure results inwhich a backflow may occur. The check valve 56 is sensitive to thispressure differential and will close to prevent backflow. The checkvalve 56 is shown in the closed position in FIG. 3.

As can be appreciated, when the bore 46 is aligned with the lumen 26,the device 10 is in an open position and the source of vacuum will drawany fluid, saliva, or debris from the tip receiving end 14 through thelumen 26 and the bore 46 and out through the hose receiving end 16. Thecheck valve 56 is in an open position or configuration at thisparticular time. In this manner, fluid, saliva, and debris may beremoved from a mouth of a patient during a dental procedure oroperation. Although the ridge 50 is shown, it is possible that anannular ring may be formed in the central body portion 44 and an O-ringmay be used to hold the valve sealing body 18 in place. Also, althoughone ridge 50 is depicted, it is contemplated that another ridge 50 maybe formed on the central body portion 44 near the bottom 48 and anotherring 38 be formed in the opening 30 near the bottom 34 to receive thesecond ridge 50 to further secure the valve sealing body 18 in place.

The rotatable valve sealing body 18 also has an annular ring 58 formedin the bottom 48. A central indentation 60 is formed within the annularring 58. The annular ring 58 has a surface 62 that contacts an interiorsurface (not shown) of the bottom 34 of the valve body 12. The annularring 58, the central indentation 60, and the surface 62 facilitatesmooth and easy rotation of the rotatable valve sealing body 18 withinthe valve body 12. The annular ring 58, the central indentation 60, andthe surface 62 further allow rotation of the body 18 without being boundup within the valve body 12.

Referring now to FIG. 4, the check valve 56 of the rotatable valvesealing body 18 is illustrated in the open position. The check valve 56comprises a housing 64 having a flap portion 66 being connected at anend portion 68. The connection of the flap portion 66 at the end portion68 allows the check valve 56 to open or close. The end portion 68 may bea hinge device that allows the flap portion 66 to move relative to thehousing 64. The housing 64 also has retaining rib openings 70 formed inthe housing 64. The rotatable valve sealing body 18 has retaining ribs72 formed in the second opening 54. The openings 70 are used to receivethe ribs 72 therein for retaining the check valve 56 in the secondopening 54. In this manner, a snap fit engagement of the check valve 56within the second opening 54 is provided. Although the openings 70 andthe ribs 72 are shown, it is possible that other retention or engagementtype constructions are contemplated, such as using an adhesive orforming the check valve 56 and the body 18 as a unitary piece orconstruction. As can be appreciated, when the flap portion 66 is in theopen position the flap portion 66 will only be within the bore 46 of thebody 18. The rotatable valve sealing body 18 is also shown having thetop 42, the central body portion 44 having the first opening 52 and thesecond opening 54, the bottom 48, the annular ring 58, the centralindentation 60, and the surface 62. The openings 52 and 54 are concaveand this provides for smooth rotation of the body 18 within the valvebody 12.

FIG. 5 shows a perspective view of the rotatable valve sealing body 18with the check valve 56 in the closed position. The housing 64 ispositioned in or on the second opening 54. The flap portion 66 ispositioned up against the housing 64. With the flap portion 66 in thisposition, the closed position, no fluid, saliva, or debris will flowthrough the body 18. The body 18 has the central body portion 44 havingan exterior surface 74. The annular ridge portion 50 is positioned nearthe top 42. Also, the handle 22 is part of the top 42.

With reference now to FIG. 6, a perspective view of the rotatable valvesealing body 18 is shown with the check valve 56 removed from the secondopening 54. The check valve 56 is also depicted in an exploded view inthat the housing 64 and the flap portion 66 have been separated. As hasbeen discussed, the housing 64 and the flap portion 66 may be a unitaryconstruction. The housing 64 has a front surface 80 that is concave tofollow the concave second opening 54 so that the front surface 80 isflush with the exterior surface 74 when the housing 64 is inserted intothe second opening, as is depicted in FIG. 5. The housing 64 also has acenter portion 82 and a back 84. The center portion 82 and the back 84have the openings 70 formed therein. Although four openings 70 areshown, it is contemplated that more or less openings 70 may be providedin the housing 64. The flap portion 66 has a front side 86, a centerportion 88, and a back side 90. The front side 86 and the center portion88 are sized and shaped to fit over the center portion 82 and the back84 of the housing 64. As can be appreciated, the flap portion 66 is asolid piece and the housing 64 has a central opening 92. The flapportion 66 is used to cover or close the central opening 92. It is alsopossible that the back 84 may have a recess, groove, or rabbet formedtherein to receive or seat the flap portion 66 therein. The flap portion66 may be connected to the housing 64 in any suitable manner. The secondopening 54 has the ribs 72 that are used to capture the openings 70 tohold the housing 54 in place in or around the second opening 54.Although four ribs 72 are depicted, as with the openings 70, more orless ribs 72 are possible.

FIGS. 7 and 8 illustrate another embodiment of a rotatable valve sealingbody 100 constructed according to the present disclosure. The rotatablevalve sealing body 100 is shown in cross-section in both FIGS. 7 and 8.Also, the rotatable valve sealing body 100 may replace the rotatablevalve sealing body 18 and be inserted into the body 12. The rotatablevalve sealing body 100 comprises a top 102, a central body portion 104having a bore 106, and a bottom 108. A portion of handle 110 is shownwhich is part of the top 102. The central body portion 104 also has anannular ridge portion 112 near the top 102. The bore 106 is adapted tobe aligned with the lumen 26 of the valve body 12. The bore 106 of therotatable valve sealing body 100 also has a first opening 114 and asecond opening 116. The first opening 114 is used to be aligned with theopening 28 (FIG. 2) in the valve body 12. The second opening 116 is usedto be aligned with the opening 36 (FIG. 2) of the valve body 12. Thesecond opening 116 has a check valve 118 positioned therein toselectively open or close the second opening 116. The check valve 118 isprovided for allowing liquid, saliva, or debris to pass from the tipreceiving end 14, the check valve 118, the bore 106, the first opening114, and out the hose receiving end 16 when the check valve 118 isopened. However, the check valve 118 also prevents any liquid, saliva,or debris from passing or traveling from the hose receiving end 16, thefirst opening 114, the bore 106, and through the check valve 118 whenthe check valve 118 is closed. The check valve 118 will close when areduced pressure occurs from an interaction of a mouth of a patient onan evacuator tip device. As has been indicated, a patient may berequested to close the mouth of the patient around the evacuator tipdevice. When this occurs, a reduced pressure results in which a backflowmay occur. The check valve 118 is sensitive to this pressuredifferential and will close to prevent backflow.

The check valve 118 has a flap portion 120 that seals against a top seatportion 122 and a bottom seat portion 124 that are formed in the body100. The flap portion 120 is connected to a bottom plate member 126. Thebottom plate member 126 snaps into an opening 128 formed in the bottom108 of the body 100. The flap portion 120 may be connected to the bottomseat portion 124 by use of a hinge 130 or by any other suitableconnection means. When manufacturing the body 100, the flap portion 120is inserted into the opening 128 and then the bottom plate member 126 issnapped into place in the opening 128 in the bottom 108.

Referring now in particular to FIG. 9, a cap device 200 is depictedwhich is used to be placed over the opening of a suction tubing or hose(not shown) when the device 10 is removed from the hose to remove ordispose the device 10. In this manner, the opening of the hose will bephysically blocked to shut off any air from rushing into the hose tosilence any noise produced by the suction system or a source of vacuum.The cap device 200 is sized and shaped to fit over the opening of thehose. The cap device 200 may be constructed of any suitable materialsuch as rubber or plastic. The valve device 10 may include the capdevice 200 so that when the valve device 10 is being removed from thehose for disposal after use the cap device 200 may be placed over theopening of the hose. The cap device 200 comprises a body portion 202having a top side 204 and a bottom side 206 with the bottom side 206having a plug portion 208. A central portion 210 is connected betweenthe body portion 202 and a pull 212. The top side 204 has a raisedportion or bump 214. The plug portion 208 is inserted into the openingof the hose or flexible tubing connected to a suction source. The pull212 is used to be grasped by a hand to remove the plug portion 208 andthe cap device 200 from the hose when a new disposable dental valvedevice 10 is to be used. The plug portion 208 may be of a sufficientsize and shape to plug an opening associated with a hose attached to asource of suction. The cap device 200 may also be provided separatelyfrom the device 10. It is also possible that the cap device 200 may beprovided as a kit with the device 10.

Although not shown, it is also possible that the tip receiving end 14may include an inlet end gasket, such as a balloon gasket, or an O ringfor holding or securing an evacuator tip in place. The inlet end gasketmay fit within channels or grooves formed in the tip receiving end 14.It is also possible that the hose receiving end 16 may incorporate ahose adapter or a tailpiece for securing a flexible hose connected to asuction system.

In operation of for example the device 10, with either the body 18 orthe body 100 as part of the device 10, the hose receiving end 16 of thedevice 10 is placed on to a hose connected to a suction system and anevacuator tip is inserted into the tip receiving end 14 and then placedin a mouth of a dental patient. The handle 22, which may include anindicator to indicate the closed position and the open position, ismanually operated to open the device 10. Once in the open position, airis allowed to flow through the tip, the tip receiving end 14, the checkvalve 56, the lumen 26, the bore 46 of the rotatable valve sealing body18, the hose receiving end 16 and into a suction system. In the eventthat reduced pressure occurs from an interaction of a mouth of a patienton an evacuator tip device, the check valve 56 will close and nobackflow will be allowed from the suction system or the valve device 10.When suction is not needed during a dental procedure, the handle 22 ismoved to the closed position. Further, once a dental procedure has beencompleted, the handle 22 is moved to the closed position, the device 10is easily separated from the hose, and the cap device 200 is placed overthe opening associated with the hose. The cap device 200 will block anyair from being sucked into the hose and this silences any noise that isgenerated by the source of vacuum or the suction system. Once the device10 is disconnected from the hose, the device 10, which includes thecheck valve 56 or the check valve 118, may be disposed of by anysuitable manner. A new device 10 is then connected to the hose after thecap device 200 is removed. With the new valve device 10 installed,another dental procedure may be initiated.

The disposable dental valve device 10 may be formed of any suitablematerial such as plastic, polyethylene, and high density polyethylene orany other suitable material that is disposable and recyclable. Anysuitable plastic may be used to construct the device 10 so that thedevice 10 may withstand use in a dental operation or procedure. It isalso possible and contemplated to incorporate an antimicrobial agent orchemical in the plastic or to provide a coating of an antimicrobialagent on the plastic to further prevent cross-contamination when usingthe device 10. As can be appreciated, the antimicrobial agent may beincorporated into any of the components of the device 10.

From all that has been said, it will be clear that there has thus beenshown and described herein a disposable dental valve device having acheck valve which fulfills the various advantages sought therefore. Itwill become apparent to those skilled in the art, however, that manychanges, modifications, variations, and other uses and applications ofthe subject disposable dental valve device having a check valve arepossible and contemplated. All changes, modifications, variations, andother uses and applications which do not depart from the spirit andscope of the disclosure are deemed to be covered by the disclosure,which is limited only by the claims which follow.

What is claimed is:
 1. A disposable dental valve device comprising: avalve body having a tip receiving end, a hose receiving end, a lumenformed between the tip receiving end and the hose receiving end, apartial opening formed in the valve body, and an annular channel formedin the partial opening; and a rotatable valve sealing body adapted tobeing inserted into the partial opening, the rotatable valve sealingbody having a bottom having an opening, an exterior surface having anannular ridge portion with the ridge portion for fitting into theannular channel in a snap fit engagement to secure the rotatable valvesealing body within the valve body, the rotatable valve sealing bodyhaving a bore for alignment with the lumen formed between the tipreceiving end and the hose receiving end, the bore having a tipreceiving opening and a hose receiving opening, a check valve positionedwithin the opening in the bottom and the bore to selectively open orclose the bore, and the rotatable valve sealing body having a top and ahandle portion connected to the top.
 2. The disposable dental valvedevice of claim 1 wherein the check valve comprises a flap portion. 3.The disposable dental valve device of claim 1 wherein the annular ridgeportion is positioned near the top.
 4. The disposable dental valvedevice of claim 1 wherein the rotatable valve sealing body and the valvebody are each constructed of plastic.
 5. The disposable dental valvedevice of claim 1 wherein an antimicrobial agent is incorporated intothe disposable dental valve device.
 6. The disposable dental valvedevice of claim 1 wherein the check valve comprises a flap portion andthe rotatable valve sealing body further comprises a top seat portionand a bottom seat portion for the flap portion to seal against.
 7. Thedisposable dental valve device of claim 1 wherein the check valvefurther comprises a bottom plate member that snaps into the opening inthe bottom.
 8. A disposable dental valve device comprising: a valve bodyhaving an exterior rib, a tip receiving end, a hose receiving end, alumen formed between the tip receiving end and the hose receiving end, apartial opening formed in the valve body; and a rotatable valve sealingbody adapted to being inserted into the partial opening, the rotatablevalve sealing body having a bottom having an opening, an exteriorsurface, a bore for alignment with the lumen formed between the tipreceiving end and the hose receiving end, the bore having a tipreceiving opening and a hose receiving opening, the rotatable valvesealing body having a check valve positioned within the opening in thebottom and the bore and the rotatable valve sealing body having a topand a handle portion connected to the top.
 9. The disposable dentalvalve device of claim 8 wherein the check valve comprises a flapportion.
 10. The disposable dental valve device of claim 9 wherein theflap portion is movable between an opened position and a closedposition.
 11. The disposable dental valve device of claim 9 wherein therotatable valve sealing body further comprises a top seat portion and abottom seat portion for the flap portion to seal against.
 12. Thedisposable dental valve device of claim 8 wherein the rotatable valvesealing body and the valve body are each constructed of plastic.
 13. Thedisposable dental valve device of claim 8 wherein an antimicrobial agentis incorporated into the disposable dental valve device.
 14. Thedisposable dental valve device of claim 8 wherein the exterior rib spansfrom the tip receiving end to the partial opening.
 15. A disposabledental valve device kit comprising: a valve body having a tip receivingend, a hose receiving end, a lumen formed between the tip receiving endand the hose receiving end, a partial opening formed in the valve body,and an annular channel formed in the partial opening; a rotatable valvesealing body adapted to being inserted into the partial opening, therotatable valve sealing body having a bottom having an opening, anexterior surface having an annular ridge portion with the ridge portionfor fitting into the annular channel in a snap fit engagement to securethe rotatable valve sealing body within the valve body, the rotatablevalve sealing body having a bore for alignment with the lumen formedbetween the tip receiving end and the hose receiving end, the borehaving a tip receiving opening and a hose receiving opening, the tipreceiving opening having a check valve positioned within the opening inthe bottom and the bore to selectively open or close the bore and therotatable valve sealing body having a top and a handle portion connectedto the top; and a cap device for insertion into a hose connected to asource of vacuum.
 16. The disposable dental valve device kit of claim 15wherein the cap device comprises a body portion having a top side and abottom side with the bottom side having a plug portion, a pull, and acentral portion connected between the body portion and the pull.
 17. Thedisposable dental valve device kit of claim 15 wherein the cap device isconstructed of rubber.
 18. The disposable dental valve device kit ofclaim 15 wherein the cap device is constructed of plastic.
 19. Thedisposable dental valve device kit of claim 15 wherein an antimicrobialagent is incorporated into the cap device.
 20. The disposable dentalvalve device of claim 15 wherein the check valve comprises a flap.